I'm not at all familiar with Dell server products. We recently purchased 2 r710s to use in split mode with a MD1220.
Each host runs its own H810.
Cabling: Server 1: From port 0 on the H810 to the EMM1 (Should see bays 0-11) Server 2: From port 0 on the H810 to the EMM0 (Should see bays 12-23)
I cannot see any drives in bays 0-11. I can see drives 12-23 though.
I have switched both H810s and can see drives 12-23 after the switch, but not drives 0-11.
The split mode switch is down and the top LED on the MD1220 is blue. I rebooted the MD1220 after switching it from unified to split mode. I've rebooted the servers several times as well.
The servers and MD1220 have been in the office for almost 2.5 months in this state. We are either going to have to get these working, or we're going to have to send them back. I'm giving up on Dell products if we can't get these working. I'm not sure where to go to get answers on how to successfully get the drives to be seen on both sides of the enc
This is also the second MD1220 that we have tested. Both units are doing the exact same thing. Only 1 side of the MD1220 works, period.
For anyone answering, please note that I don't have enough rep points to accept your answer, unfortunately.
Not sure if this helps, but when I put the MD1220 in unified mode, the drives are seen starting from bay 0. This should indicate that there is nothing wrong with the HDD connections within the bays themselves.